Flora of Williams area along AZ64 north of I-40

Checklist

See map showing this floral area with iNat observations plotted.

The checklist is in the traditional order of lycopods, ferns, conifers, dicots, and monocots. The scientific names are in the system used by Seinet as of 22 September 2021 to 6 September 2022.

The column Famil gives the first five letters in the family name.

The column ID indicates whether there is uncertainty about the species determination. A "~" in this column indicates it is a probable determination. A "?" in this column indicates the species given is just a guess.

The Scientific Name is linked to the SEINet page on each taxon. The SEINet pages usually contain abundant photographs of each taxon, along with a description of it. Note that some links might go to a page with a different Scientific Name that is synonymous with the name given here.

An asterisk before the common name indicates a non-native species. Surprisingly, I can't find a list of Arizona plants that denotes whether a species is native or not, so I've had to add the asterisks mostly by hand. If I have made a mistake on any, please let me know.

The column with header "SN" indicates that a taxon was on a list retrieved from Seinet on 19 September 2021 using a 5 km radius centered on 35.29171, -112.14037, a location on AZ64 just north of I-40.

The column with header "V" indicates that there is a voucher of that taxon retrieved from Seinet on 19 September 2021 in the rectangle from 35.257 to 35.325° N. latitude, and -112.161 to -112.135° E. Longitude if there is a "V" in this column. If there is a "V'" in this column, that taxon was mentioned as an associated species in a voucher of another species.

The column with header "iN" indicates that there was an iNat observation of that taxon in the same rectangular area as for the voucher search, from an updated search on 4 September 2022.

The column with header "TC" indicates that a taxon was observed by Tom Chester in the National Forest area along AZ64 north of I-40, from many stops in that area over the years, or along AZ45 (the road to Kaibab Lake), including in the area of Kaibab Lake itself, on a single stop with Don Rideout in 2021.

This checklist should be treated as a list of species that potentially might be found in this area, since there is no guarantee any determination from any source is correct.

See iNat observations for this area which include observations not determined to the species level. As of 6 September 2022, this iNat search returned 174 observations of 81 species. Don Rideout (@lagoondon) was the leading contributor, with 33 observations of 29 species, followed by Stephanie Cobbold (@scobbold) with 20 observations of 10 species. Tom Chester (@tchester) is the leading identifier, with 62 identifications, followed by Steve Jones (@stevejones) with 32.

Version for printing, without lines and other text on this page: html (4 pages), or pdf Clickbook booklet (1 double-sided page). (See printing instructions for an explanation of these options)

#	Famil	ID	Scientific Name Link goes to SEINet	(*)Common Name	SN	V	#iN	TC
Gymnosperms
1	Cupre		Juniperus deppeana	Alligator Juniper		V
2	Cupre		Juniperus monosperma	One-Seed Juniper		V	iN
3	Cupre		Juniperus osteosperma	Utah juniper	x	V
4	Pinac		Pinus edulis	two-needle pinyon pine	x	V
5	Pinac		Pinus ponderosa	ponderosa pine	x		iN
Eudicots
6	Amara		Amaranthus powellii	Powell's amaranth	x	V
7	Amara		Bassia scoparia	Mexican-Fireweed	x	V’
8	Amara		Dysphania graveolens	fetid goosefoot			iN	TC
9	Amara		Krascheninnikovia lanata	winter fat			iN	TC
10	Anaca		Rhus aromatica	basketbush			iN
11	Apiac		Lomatium nevadense	Nevada lomatium	x	V	iN
12	Apiac		Vesper multinervatus	purple-nerve cymopterus			iN
13	Apocy		Asclepias asperula ssp. asperula	spider milkweed			iN
14	Apocy		Asclepias subverticillata	poison milkweed			iN	TC
15	Aspar		Echeandia flavescens	Torrey's Crag-Lily	x
16	Aster		Achillea millefolium	yarrow			iN	TC
17	Aster		Agoseris parviflora	false agoseris	x
18	Aster		Ambrosia psilostachya	western ragweed	x		iN
19	Aster		Antennaria parvifolia	Little-Leaf Pussytoes	x	V	iN	TC
20	Aster		Artemisia carruthii	Carruth's Sagebrush	x
21	Aster		Artemisia frigida	Prairie Sagebrush	x	V
22	Aster		Artemisia ludoviciana	white sagebrush			iN
23	Aster		Chaetopappa ericoides	rose heath				TC
24	Aster		Chrysothamnus depressus	long-flowered rabbitbrush	x	V
25	Aster		Chrysothamnus viscidiflorus	sticky-leaved rabbitbrush		V
26	Aster		Cirsium arizonicum	Arizona thistle	x
27	Aster		Cirsium wheeleri	Wheeler's thistle	x	V	iN	TC
28	Aster		Coreopsis tinctoria	calliopsis	x		iN
29	Aster		Cosmos parviflorus	southwestern cosmos			iN	TC
30	Aster		Dieteria canescens	Hoary Tansy-Aster	x		iN	TC
31	Aster		Dyssodia papposa	fetid marigold	x	V
32	Aster		Ericameria nauseosa	common rabbitbrush	x		iN	TC
33	Aster		Erigeron concinnus	tidy fleabane	x
34	Aster		Erigeron divergens	spreading fleabane	x	V	iN	TC
35	Aster		Erigeron flagellaris	trailing fleabane	x	V
36	Aster		Gutierrezia sarothrae	matchweed	x	V’	iN	TC
37	Aster		Helianthus annuus	annual sunflower	x	V	iN	TC
38	Aster		Helianthus petiolaris	prairie sunflower				TC
39	Aster		Heliomeris longifolia var. annua	longleaf false goldeneye	x	V	iN	TC
40	Aster		Heliomeris multiflora	showy goldeneye			iN
41	Aster		Hymenopappus filifolius var. lugens	Columbia cutleaf	x	V	iN	TC
42	Aster		Hymenothrix dissecta	ragged-leaf bahia			iN	TC
43	Aster		Hymenoxys cooperi	Cooper’s rubberweed		V
44	Aster		Hymenoxys richardsonii var. floribunda	Colorado rubberweed	x			TC
45	Aster		Lactuca serriola	*prickly lettuce			iN	TC
46	Aster		Laennecia coulteri	Coulter's horseweed	x	V	iN
47	Aster		Packera multilobata	Basin butterweed	x	V	iN
48	Aster		Pseudognaphalium macounii	Macoun's cudweed	x	V
49	Aster		Psilostrophe sparsiflora	greenstem paperflower				TC
50	Aster		Sanvitalia abertii	Abert's sanvitalia			iN
51	Aster		Senecio spartioides	broom groundsel	x
52	Aster		Solidago altissima	Tall Goldenrod	x
53	Aster		Solidago velutina	velvety goldenrod			iN	TC
54	Aster		Stephanomeria thurberi	Thurber's wirelettuce			iN
55	Aster		Symphyotrichum ericoides	White Heath American-Aster			iN	TC
56	Aster		Symphyotrichum falcatum	white prairie daisy	x
57	Aster		Taraxacum officinale	*common dandelion			iN
58	Aster		Townsendia exscapa	Stemless Townsend Daisy	x
59	Aster		Tragopogon dubius	*yellow salsify		V’	iN	TC
60	Aster		Verbesina encelioides ssp. exauriculata	golden viguiera	x	V
61	Aster		Xanthium strumarium	cocklebur			iN
62	Berbe		Berberis fremontii	Fremont barberry	x	V	iN	TC
63	Borag		Cryptantha cinerea var. cinerea	James' cryptantha	x			TC
64	Borag		Lithospermum cobrense	Smooth-Throat Gromwell			iN
65	Borag		Nama dichotomum var. dichotomum	forked purple mat	x	V		TC
66	Borag		Phacelia alba	white phacelia	x	V
67	Brass		Alyssum simplex	wild alyssum	x	V
68	Brass		Boechera fendleri	Fendler's Rockcress	x
69	Brass		Camelina microcarpa	little-podded falseflax	x	V
70	Brass		Hesperidanthus linearifolius	slimleaf plains-mustard	x	V	iN	TC
71	Brass		Lepidium montanum	mountain pepper-grass	x	V		TC
72	Brass		Lepidium virginicum	wild pepper-grass	x
73	Brass		Noccaea fendleri	wild candytuft			iN
74	Brass		Sisymbrium irio	*London rocket			iN
75	Cacta		Cylindropuntia whipplei	Rat-tail cholla			iN
76	Cacta		Echinocereus fendleri	Pink-Flower Hedgehog Cactus	x
77	Cacta		Opuntia pottsii	twistspine pricklypear			iN
78	Caryo		Eremogone eastwoodiae	Eastwood's Matted Sandwort	x
79	Caryo		Eremogone fendleri	Fendler's Matted Sandwort	x
80	Convo		Convolvulus arvensis	*field bindweed			iN
81	Erica		Arctostaphylos patula	green-leaf manzanita		V
82	Eupho		Euphorbia albomarginata	rattlesnake weed	x	V
83	Eupho		Euphorbia dentata	Toothed Spurge				TC
84	Eupho		Euphorbia fendleri	Fendler's sandmat	x
85	Eupho		Euphorbia serpyllifolia	Thyme-Leaf Sandmat				TC
86	Fabac		Astragalus hallii var. fallax	Hall's milkvetch			iN	TC
87	Fabac		Astragalus recurvus	Recurved Milk-Vetch	x
88	Fabac		Dalea albiflora	White-Flower Prairie-Clover	x
89	Fabac		Dalea polygonoides	Six-Weeks Prairie-Clover				TC
90	Fabac		Dalea urceolata	Pine-Forest Prairie-Clover			iN	TC
91	Fabac		Lathyrus lanszwertii var. leucanthus	Nevada pea	x	V
92	Fabac		Lotus wrightii	Wright's deervetch	x	V		TC
93	Fabac		Lupinus kingii	King's Lupine	x			TC
94	Fabac		Lupinus palmeri	bluebonnet lupine		V
95	Fabac		Medicago sativa	*alfalfa			iN	TC
96	Fabac		Melilotus albus	*white sweet-clover			iN	TC
97	Fabac		Melilotus officinalis	*yellow sweet-clover			iN
98	Fabac		Oxytropis lambertii	stemless point-vetch			iN
99	Fabac		Pediomelum tenuiflorum	Slender-Flower Indian-Breadroot	x	V
100	Fagac		Quercus gambelii	Gambel oak			iN
101	Geran		Erodium cicutarium	*redstem filaree	x	V
102	Geran		Geranium caespitosum	pineywoods geranium	x	V’		TC
103	Gross		Ribes cereum	wax currant	x	V
104	Hydro		Elodea canadensis	common water weed	x
105	Irida		Iris missouriensis	western blue flag			iN
106	Lamia		Dracocephalum parviflorum	American Dragonhead				TC
107	Lamia		Hedeoma oblongifolia	Oblong-Leaf False Pennyroyal				TC
108	Lamia		Hedeoma reverchonii	Reverchon's False Pennyroyal		V
109	Lamia		Marrubium vulgare	*horehound			iN
110	Lamia		Salvia subincisa	Saw-tooth sage			iN	TC
111	Lamia		Stachys rothrockii	Rothrock's Hedge-Nettle	x	V
112	Linac		Linum australe	Southern Flax	x
113	Linac		Linum lewisii	Lewis' flax		V	iN
114	Malva		Sphaeralcea fendleri	Fendler globe mallow	x	V
115	Malva		Sphaeralcea hastulata	Spear Globe-Mallow	x	V
116	Malva	~	Sphaeralcea incana	gray globemallow	x			~TC
117	Melan		Zigadenus paniculatus	foothill deathcamas		V
118	Nycta		Mirabilis linearis	narrow-leaf four o'clock			iN	TC
119	Nycta		Mirabilis multiflora	giant four o'clock				TC
120	Onagr		Epilobium brachycarpum	autumn willowweed	x		iN	TC
121	Onagr		Gaura hexandra ssp. gracilis	harlequinbush				TC
122	Onagr		Gayophytum racemosum	black-foot gayophytum	x
123	Onagr		Oenothera coronopifolia	Hairy-Throat Evening-Primrose	x
124	Onagr		Oenothera flava	yellow evening primrose			iN
125	Onagr		Oenothera suffrutescens	scarlet gaura	x			TC
126	Oroba		Castilleja integra	wholeleaf Indian paintbrush	x	V	iN	TC
127	Oroba		Castilleja miniata	scarlet paintbrush	x		iN
128	Oroba		Cordylanthus wrightii	Wright's bird's beak	x	V
129	Oroba		Orthocarpus purpureoalbus	Purple-White Owl-Clover				TC
130	Papav		Argemone corymbosa ssp. arenicola	Mojave pricklypoppy			iN	TC
131	Plant		Linaria dalmatica	Dalmatian Toadflax	x		iN	TC
132	Plant		Penstemon barbatus	beardtongue	x	V	iN
133	Plant		Penstemon linarioides	toadflax penstemon	x			TC
134	Plant		Penstemon nudiflorus	Flagstaff Beardtongue	x
135	Plant		Plantago argyraea	saltmeadow plantain			iN
136	Plant		Veronica peregrina	purslane speedwell	x	V
137	Polem		Ipomopsis aggregata	scarlet gilia	x			TC
138	Polem		Ipomopsis multiflora	Many-Flower Skyrocket	x			TC
139	Polem		Phlox amabilis	Arizona phlox			iN
140	Polem		Phlox gracilis	annual phlox	x	V
141	Polem		Phlox longifolia ssp. brevifolia	longleaf phlox	x	V
142	Polem		Phlox speciosa ssp. woodhousei	Showy Phlox	x	V
143	Polyg		Eriogonum alatum	winged buckwheat	x
144	Polyg		Eriogonum corymbosum	Crisp-Leaf Wild Buckwheat	x
145	Polyg		Eriogonum pharnaceoides	Wire-Stem Wild Buckwheat	x	V		TC
146	Polyg		Eriogonum racemosum	redroot buckwheat	x	V’	iN	TC
147	Polyg		Persicaria amphibia var. emersa	longroot smartweed			iN
148	Polyg		Polygonum polygaloides	milkwort knotweed	x
149	Polyg		Polygonum sawatchense	Johnston's knotweed			iN	TC
150	Primu		Androsace septentrionalis	Pygmy-Flower Rock-Jasmine		V
151	Ranun		Ceratocephala testiculata	*curveseed butterwort	x
152	Ranun		Delphinium scaposum	barestem larkspur	x
153	Ranun		Myosurus nitidus	Western Mousetail	x	V
154	Ranun		Ranunculus cardiophyllus	Heart-Leaf Buttercup		V
155	Ranun		Ranunculus inamoenus var. inamoenus	graceful buttercup		V
156	Rosac		Amelanchier utahensis	Utah Service-Berry			iN
157	Rosac		Purshia stansburiana	cliffrose		V
158	Salic		Populus alba	white poplar	x	V
159	Santa		Phoradendron juniperinum	juniper mistletoe	x	V
160	Scrop		Verbascum thapsus	*common mullein			iN	TC
161	Solan		Physalis subulata var. neomexicana	Chihuahuan Ground-Cherry				TC
162	Solan		Solanum xanti	chaparral nightshade		V
163	Verbe		Glandularia bipinnatifida var. ciliata	Davis Mountain mock vervain	x	V
164	Verbe		Verbena bracteata	bracted verbena	x	V
165	Amary		Allium cernuum	Nodding Onion	x
Monocots
166	Lilia		Calochortus ambiguus	Arizona mariposa lily	x	V	iN
167	Lilia		Calochortus nuttallii	Sego lily	x
168	Poace		Aristida purpurea	purple three-awn	x		iN
169	Poace		Bouteloua gracilis	blue grama	x	V	iN	TC
170	Poace		Bromus ciliatus	fringed brome	x	V
171	Poace		Bromus commutatus	Meadow Brome	x	V
172	Poace		Bromus tectorum	*downy brome		V’
173	Poace		Elymus elymoides	squirreltail		V’
174	Poace		Eriocoma hymenoides	Indian ricegrass	x	V
175	Poace		Hordeum jubatum	Fox-Tail Barley			iN
176	Poace		Koeleria macrantha	June grass		V’	iN
177	Poace		Muhlenbergia minutissima	annual muhly				TC
178	Poace		Muhlenbergia pauciflora	few-flowered muhly	x	V
179	Poace		Muhlenbergia rigens	deergrass			iN
180	Poace		Muhlenbergia sinuosa	Marshland Muhly		V
181	Poace		Poa fendleriana	mutton grass	x	V
182	Poace		Schizachyrium scoparium var. scoparium	Little False Bluestem		V
183	Typha		Typha latifolia	Broad-Leaf Cat-Tail			iN

Acknowledgments

A number of colleagues have been with me over the years at the stops we've made in this area on the way to or from the Grand Canyon, including Nancy Accola, Adrienne Ballwey, Michael Charters, Mike Crouse, and Don Rideout.

Go to:

• Native and Introduced Plants of the Grand Canyon, Arizona

Copyright © 2021-2022 by Tom Chester.
Permission is freely granted to reproduce any or all of this page as long as credit is given to me at this source:
http://tchester.org/gc/plants/flora/williams_area.html
Comments and feedback: Tom Chester
Last Update: 6 September 2022